added 2 gallons of bleach last night and no chlorine in the pool this morning. I added 2 gallons again this morning and 2 hours later 0 chlorine.

Do I have a more serious problem??

I really can only look at this twice a day. 3 gallons should add 20ppm for my pool which is the shock level because of my CYA. Can I just add 4 gallons before bed and check in the AM and over shock again. I am out of bleach and I am going to bed (work 3rd shift). Any suggestions would be appreciated.

I have a bunch of pucks (tri-chlor) left from last year and shock leftover from last year. Should I use either of them or stick w/bleach?

Stephen